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上海自动化仪表一厂在1980年配套试制成“流量积算显示装置”。该装置由节流件(孔板)、CE型差压变送器、开方积算器和指示仪表(或记录仪表)等组成,用来测量、累计在额定工况下各种液体、气体、蒸汽的流量,并且能够指示或记录流量值(见图示)。差压式流量计采用“CE”型膜盒式差压变送器,安装在现场。它的供电电源是220 V 50Hz,输出信号0～10 mA直流电流,最低量程0～600 mmH_2O,最高量程0～25000 mmH_2O。该变送器装有承受单向压力保护装置。本装置的流量积算仪表和流量指示仪表(或流量记录仪表)可以安装在远离生产设备现场的控制室内,便于集中控制。单套装置的显示、积算、记录部分的仪表箱共分为台式和墙挂式两种式样。多套装置的积
Shanghai Automation Instrumentation Factory in 1980 supporting the trial made “Flow Totalizer display ”. The device consists of throttling pieces (orifice), CE type differential pressure transmitter, square totalizer and instructions instrumentation (or recording instruments) and other components used to measure and accumulate in the rated conditions of various liquids, gases , Steam flow, and can indicate or record the flow rate value (see illustration). Differential pressure flow meter using “CE ” type cassette differential pressure transmitter, installed at the scene. Its power supply is 220 V 50Hz, the output signal 0 ~ 10 mA DC current, the minimum range of 0 ~ 600 mmH_2O, the maximum range of 0 ~ 25000 mmH_2O. The transmitter is equipped with a one-way pressure protection device. The flowmeter and flow indicator (or flow recorder) of this unit can be installed in the control room far away from the production equipment site for centralized control. Single set of device display, totalizer, record part of the instrument box is divided into two kinds of desktop and wall-mounted style. Multi-set of devices